Analysis

  • max time kernel
    143s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2024, 03:43

General

  • Target

    bf12d7893c50c8135f7da7ce8b7fa57d84e279e01558fafa331a2f4b9d06149e.exe

  • Size

    6.7MB

  • MD5

    af864148a38ad5f4bb4c6354d2c11828

  • SHA1

    d8b675fce0f61b08f34e93ead00df9f5115633e9

  • SHA256

    bf12d7893c50c8135f7da7ce8b7fa57d84e279e01558fafa331a2f4b9d06149e

  • SHA512

    8ab74842ed8cb286ff560e77dd87f294ff2bc76059a20c716a91a79b328caa9864bf6f5bf37054dd0f0bde238ddc8a715b70fc2444ca3349b6ed480b3ab6705b

  • SSDEEP

    98304:aEsQNF1Qmc8mD4PCAioOdcMpxhryv19HH9Nk:XrQWmDKCAaryz8

Malware Config

Signatures

  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf12d7893c50c8135f7da7ce8b7fa57d84e279e01558fafa331a2f4b9d06149e.exe
    "C:\Users\Admin\AppData\Local\Temp\bf12d7893c50c8135f7da7ce8b7fa57d84e279e01558fafa331a2f4b9d06149e.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3640
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5084

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files\Common Files\System\symsrv.dll

          Filesize

          67KB

          MD5

          7574cf2c64f35161ab1292e2f532aabf

          SHA1

          14ba3fa927a06224dfe587014299e834def4644f

          SHA256

          de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

          SHA512

          4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

        • C:\Program Files\Common Files\System\symsrv.dll.000

          Filesize

          175B

          MD5

          1130c911bf5db4b8f7cf9b6f4b457623

          SHA1

          48e734c4bc1a8b5399bff4954e54b268bde9d54c

          SHA256

          eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

          SHA512

          94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

        • memory/3640-30-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-33-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-19-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-18-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-13-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-25-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-26-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-24-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-29-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-31-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-12-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-35-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-37-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-39-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-41-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-42-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3640-43-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-45-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-47-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB

        • memory/3640-49-0x0000000000400000-0x0000000000B93000-memory.dmp

          Filesize

          7.6MB